What are the side pot poker rules and how do they impact the outcome of a hand?

In Poker, a side pot is created when one or more players go all-in and have different amounts of chips. The side pot is separate from the main pot and is only contested by the players who have contributed to it. The side pot rules impact the outcome of a hand by allowing players with more chips to compete for a larger pot, while players with fewer chips can only win the main pot. This can lead to different players winning different amounts of money in a single hand.